CN203396615U - Intermediate sampling device by continuous operation of reduced pressure distillation - Google Patents
Intermediate sampling device by continuous operation of reduced pressure distillation Download PDFInfo
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- CN203396615U CN203396615U CN201320533978.5U CN201320533978U CN203396615U CN 203396615 U CN203396615 U CN 203396615U CN 201320533978 U CN201320533978 U CN 201320533978U CN 203396615 U CN203396615 U CN 203396615U
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Abstract
The utility model relates to an intermediate sampling device by continuous operation of reduced pressure distillation. The device comprises a left three-way piston, a gas-guide tube and a right three-way piston, wherein the left three-way piston is communicated with the right three-way piston through the gas-guide tube. Intermediate sampling and whole continuous reduced pressure distillation process without interruption are ensured by controlling the rotating direction of the left three-way piston and the right three-way piston, thereby effectively avoiding bumping phenomenon in the reduced pressure distillation process due to a superheated liquid. In addition, the device provided by the utility model is simple in structure, convenient to operate and low in cost, and is specially used in related instruments for reduced pressure distillation to ensure smooth sampling.
Description
Technical field
The utility model belongs to decompression distillation experimental apparatus technical field, particularly a kind of for decompression distillation instrument can intermittent sampling decompression distillation continued operation intermittent sampling device.
Background technology
Decompression distillation (evaporation) is to reduce intrasystem pressure by vacuum pump, and the boiling point of liquid is reduced, thereby reaches the partly or entirely separated object of each component in liquid mixture, has been widely used at present the fields such as organic synthesis, crude oil separation.
At present, the decompression distillation of laboratory routine (evaporation) device is only comprised of distillation, decompression, safeguard protection three parts.At distillation receiving unit, although can different cuts be flowed in different liquid receptacles by rotating threeway distillation receiver (being again many tails adapter, dovetail pipe), if but to distillation (evaporation) product carry out timing, during instant analysis, just have to interrupt decompression distillation (evaporation) operation, the negative pressure existing in balanced system, could take out the cut in liquid receptacle.After cut takes out, restart decompression distillation (evaporation) operation, whole operating process is loaded down with trivial details again, and when decompression distillation (evaporation) operation is restarted, because liquid to be distilled has certain temperature, very easily because producing bumping, liquid superheat goes out phenomenon.
Utility model content
Existing deficiency while sampling in order to overcome existing decompression distillation instrument, the utility model provides a kind of can guarantee the sampling of continued operation gap and simple in structure, easy to operate decompression distillation continued operation intermittent sampling device.
The utility model solves the problems of the technologies described above adopted technical scheme and comprises left stop,threeway, wireway and right stop,threeway, and left stop,threeway is communicated with right stop,threeway by wireway;
Three mouths of pipe of above-mentioned left stop,threeway are respectively the sample introduction mouth of pipe, go out the sample mouth of pipe, the first air guide mouth of pipe, the sample introduction mouth of pipe, go out the sample mouth of pipe center line on same straight line;
Three mouths of pipe of above-mentioned right stop,threeway are respectively the second air guide mouth of pipe, vacuum interface and the ventilation mouth of pipe, and the second air guide mouth of pipe is communicated with by wireway with the first air guide mouth of pipe.
The above-mentioned sample introduction mouth of pipe with go out the sample mouth of pipe and be standard mouth ground.
Angle between the above-mentioned first air guide mouth of pipe and the center line of the sample introduction mouth of pipe is 30～150 °.
The angle of the center line of the above-mentioned second air guide mouth of pipe and vacuum interface and the ventilation mouth of pipe at grade and between the second air guide mouth of pipe and the center line of vacuum interface, vacuum interface and the ventilation mouth of pipe is 30～150 °.
The center line of the above-mentioned second air guide mouth of pipe and vacuum interface on same straight line, and with the angle of center line of the ventilation mouth of pipe be 90 °.
A kind of decompression distillation continued operation intermittent sampling device provided by the utility model, it is that left stop,threeway is communicated with right stop,threeway by wireway, by controlling the sense of rotation of left stop,threeway and right stop,threeway, guarantee intermittent sampling and whole vacuum distillation process carries out continuously, without interruption, effectively avoided in vacuum distillation process because liquid superheat produces bumping phenomenon, in addition of the present utility model simple in structure, easy to operate, with low cost, be exclusively used in the pertinent instruments of decompression distillation, guarantee that sampling smoothly.
Accompanying drawing explanation
Fig. 1 is the decompression distillation continued operation intermittent sampling apparatus structure schematic diagram of embodiment 1.
Fig. 2 is the use state reference map of Fig. 1 in decompression distillation continued operation intermittent sampling process.
Embodiment
Now with embodiment, the technical solution of the utility model is further described by reference to the accompanying drawings, but the utility model is not limited only to following enforcement situation.
As shown in Figure 1, the decompression distillation continued operation intermittent sampling device of the present embodiment is to be connected and composed by left stop,threeway 1, wireway 2 and right stop,threeway 3.
Three mouths of pipe of the left stop,threeway 1 of the present embodiment are respectively sample introduction mouth of pipe a, go out sample mouth of pipe b, the first air guide mouth of pipe c, sample introduction mouth of pipe a and go out sample mouth of pipe b and be standard mouth ground and its center line on same straight line, the first air guide mouth of pipe c and sample introduction mouth of pipe a, go out sample mouth of pipe b vertical, between the center line of the first air guide mouth of pipe c and the center line of sample introduction mouth of pipe a, be the angle of 90 °, this the first air guide mouth of pipe c is communicated with right stop,threeway 3 by wireway 2, the structure of right stop,threeway 3 is identical with the structure of left stop,threeway 1, its three mouths of pipe are respectively the second air guide mouth of pipe d, ventilation mouth of pipe e and vacuum interface f, the second air guide mouth of pipe d is communicated with the first air guide mouth of pipe c by wireway 2, the center line of the second air guide mouth of pipe d and vacuum interface f is on same straight line, e is vertical with the center line of the second air guide mouth of pipe d for the ventilation mouth of pipe, and communicate with atmosphere, for emptying.
The use of decompression distillation continued operation intermittent sampling device is referring to Fig. 2, and vacuum distillation apparatus is to be taken over Z-6, vacuum pump Z-7, safety flack Z-8, receiving bottle Z-9 and above-mentioned decompression distillation continued operation intermittent sampling device and connected and composed by well heater Z-1, flask Z-2, still head Z-3, thermometer Z-4, condenser pipe Z-5, tail.The liquid outlet that the sample introduction mouth of pipe a of the decompression distillation continued operation intermittent sampling device of the present embodiment and tail are taken over Z-6 joins, and goes out sample mouth of pipe b and is communicated with the inlet of receiving bottle Z-9, and vacuum interface f is communicated with circulation vacuum pump Z-7 by rubber catheter.In vacuum distillation process, after the liquid holding in there-necked flask Z-2 heats by well heater Z-12, producing steam is entered and in condenser pipe Z-5, is carried out heat exchange by still head Z-3, steam is become to condensed fluid, condensed fluid enters tail and takes in Z-6 after discharging, the effect of accepting of being taken over Z-6 by tail imports condensed fluid in decompression distillation continued operation intermittent sampling device, carry out intermittent sampling, first rotating left stop,threeway 1 is adjusted to sample introduction mouth of pipe a and closes, go out sample mouth of pipe b and the first air guide mouth of pipe c opens, adjust again right stop,threeway 3 to opening to the second air guide mouth of pipe d and ventilation mouth of pipe e, vacuum interface f closes, use sample mouth of pipe b and the first air guide mouth of pipe c, the second air guide mouth of pipe d and ventilation mouth of pipe e are communicated with, in receiving bottle Z-9, pass into atmosphere, so both guaranteed can carry out continuously in the distillation condensation process of sample introduction mouth of pipe a front end, can guarantee out that again the receiving bottle Z-9 that sample mouth of pipe b connects can take off smoothly, complete intermittent sampling.After having sampled, receiving bottle Z-9 is taken back out to sample mouth of pipe b again, rotating right stop,threeway 3 closes to ventilation mouth of pipe e, the second air guide mouth of pipe d, vacuum interface f opens, use sample mouth of pipe b ﹑ the first air guide mouth of pipe c, the second air guide mouth of pipe d and vacuum interface f are connected with vacuum pump Z-7, when the negative pressure showing in the negative pressure in receiving bottle Z-9 and vacuum distillation process equates, rotate left stop,threeway 1 to sample introduction mouth of pipe a, going out sample mouth of pipe b is communicated with, the first air guide mouth of pipe c closes, rotating right stop,threeway 3 is communicated with ventilation mouth of pipe e to vacuum interface f again, liquid after decompression distillation enters again in receiving bottle Z-9 like this, after certain hour, repeat intermittent sampling, guarantee like this to press continued operation intermittent sampling in still-process.
Three mouths of pipe of the left stop,threeway 1 of the present embodiment are respectively sample introduction mouth of pipe a, go out sample mouth of pipe b, the first air guide mouth of pipe c, sample introduction mouth of pipe a and go out sample mouth of pipe b and be standard mouth ground and its center line on same straight line, between the center line of the center line of the first air guide mouth of pipe c and sample introduction mouth of pipe a, be the angle of 30 °, other parts and annexation thereof are identical with embodiment 1.
Three mouths of pipe of the left stop,threeway 1 of the present embodiment are respectively sample introduction mouth of pipe a, go out sample mouth of pipe b, the first air guide mouth of pipe c, sample introduction mouth of pipe a and go out sample mouth of pipe b and be standard mouth ground and its center line on same straight line, between the center line of the center line of the first air guide mouth of pipe c and sample introduction mouth of pipe a, be the angle of 150 °, other parts and annexation thereof are identical with embodiment 1.
In above-described embodiment 1～3, three mouths of pipe of right stop,threeway 3 are respectively the second air guide mouth of pipe d, ventilation mouth of pipe e and vacuum interface f, the second air guide mouth of pipe d is communicated with the first air guide mouth of pipe c by wireway 2, and the angle of the center line of the second air guide mouth of pipe d and vacuum interface f and ventilation mouth of pipe e at grade and between the second air guide mouth of pipe d and vacuum interface f, vacuum interface f and ventilation mouth of pipe e, the second air guide mouth of pipe d and the center line of ventilation mouth of pipe e is 120 °.Other parts and annexation thereof are identical with corresponding embodiment.
In above-described embodiment 1～3, three mouths of pipe of right stop,threeway 3 are respectively the second air guide mouth of pipe d, ventilation mouth of pipe e and vacuum interface f, the second air guide mouth of pipe d is communicated with the first air guide mouth of pipe c by wireway 2, the angle of the center line of the second air guide mouth of pipe d and vacuum interface f and ventilation mouth of pipe e at grade and between the second air guide mouth of pipe d and vacuum interface f, vacuum interface f and the center line of ventilation mouth of pipe e is 30 °, and other parts and annexation thereof are identical with corresponding embodiment.
In above-described embodiment 1～3, three mouths of pipe of right stop,threeway 3 are respectively the second air guide mouth of pipe d, ventilation mouth of pipe e and vacuum interface f, the second air guide mouth of pipe d is communicated with the first air guide mouth of pipe c by wireway 2, the angle of the center line of the second air guide mouth of pipe d and vacuum interface f and ventilation mouth of pipe e at grade and between the second air guide mouth of pipe d and vacuum interface f, vacuum interface f and the center line of ventilation mouth of pipe e is 150 °, and other parts and annexation thereof are identical with corresponding embodiment.
Decompression distillation continued operation intermittent sampling device of the present utility model can also be applied in other the instrument of decompression distillation such as Rotary Evaporators.
While using in Rotary Evaporators, the liquid outlet of sample introduction mouth of pipe a and condenser pipe joins, going out sample mouth of pipe b is communicated with the inlet of receiving flask, vacuum interface f is communicated with circulation vacuum pump by rubber catheter, circulation vacuum pump is also connected with condenser pipe vacuum orifice topmost simultaneously, guarantee that the liquid holding in revolving bottle produces steam by the low-temperature heat of heating bath, produce steam and enter condensing tube condensation, steam is become to condensed fluid, directly through decompression distillation continued operation intermittent sampling device of the present utility model, enter receiving flask, during intermittent sampling, first rotating left stop,threeway 1 is adjusted to sample introduction mouth of pipe a and closes, go out sample mouth of pipe b and the first air guide mouth of pipe c opens, adjust again right stop,threeway 3 to opening to the second air guide mouth of pipe d and ventilation mouth of pipe e, vacuum interface f closes, use sample mouth of pipe b and the first air guide mouth of pipe c, the second air guide mouth of pipe d and ventilation mouth of pipe e are communicated with, in receiving flask, pass into atmosphere, so both guaranteed can carry out continuously in the distillation condensation process of feed liquor mouth of pipe a front end, can guarantee that again the receiving flask that fluid mouth of pipe b connects can take off smoothly, complete intermittent sampling.After having sampled, receiving flask is taken back out to sample mouth of pipe b again, rotating right stop,threeway 3 closes to ventilation mouth of pipe e, the second air guide mouth of pipe d, vacuum interface f opens, use sample mouth of pipe b ﹑ the first air guide mouth of pipe c, the second air guide mouth of pipe d and vacuum interface f are connected with vacuum pump Z-7, when the negative pressure showing in the negative pressure in receiving flask and vacuum distillation process equates, rotate left stop,threeway 1 to sample introduction mouth of pipe a, going out sample mouth of pipe b is communicated with, the first air guide mouth of pipe c closes, rotating right stop,threeway 3 is communicated with ventilation mouth of pipe e to vacuum interface f again, the liquid that in Rotary Evaporators, continued operation produces like this enters again in receiving flask, after certain hour, repeat intermittent sampling, guarantee like this to press continued operation intermittent sampling in still-process.
Claims (5)
1. a decompression distillation continued operation intermittent sampling device, is characterized in that: comprise left stop,threeway (1), wireway (2) and right stop,threeway (3), described left stop,threeway (1) is communicated with right stop,threeway (3) by wireway (2);
Three mouths of pipe of above-mentioned left stop,threeway (1) are respectively the sample introduction mouth of pipe, go out the sample mouth of pipe, the first air guide mouth of pipe, the described sample introduction mouth of pipe, go out the sample mouth of pipe center line on same straight line;
Three mouths of pipe of above-mentioned right stop,threeway (3) are respectively the second air guide mouth of pipe, vacuum interface and the ventilation mouth of pipe, and the second air guide mouth of pipe is communicated with by wireway (2) with the first air guide mouth of pipe.
2. decompression distillation continued operation intermittent sampling device according to claim 1, is characterized in that: the described sample introduction mouth of pipe with go out the sample mouth of pipe and be standard mouth ground.
3. decompression distillation continued operation intermittent sampling device according to claim 1, is characterized in that: the angle between the described first air guide mouth of pipe and the center line of the sample introduction mouth of pipe is 30～150 °.
4. decompression distillation continued operation intermittent sampling device according to claim 1, is characterized in that: the angle of the center line of the described second air guide mouth of pipe and vacuum interface and the ventilation mouth of pipe at grade and between the second air guide mouth of pipe and the center line of vacuum interface, vacuum interface and the ventilation mouth of pipe is 30～150 °.
5. decompression distillation continued operation intermittent sampling device according to claim 1, is characterized in that: the center line of the described second air guide mouth of pipe and vacuum interface on same straight line, and with the angle of the center line of the ventilation mouth of pipe be 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533978.5U CN203396615U (en) | 2013-08-29 | 2013-08-29 | Intermediate sampling device by continuous operation of reduced pressure distillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533978.5U CN203396615U (en) | 2013-08-29 | 2013-08-29 | Intermediate sampling device by continuous operation of reduced pressure distillation |
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| Publication Number | Publication Date |
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| CN203396615U true CN203396615U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320533978.5U Expired - Fee Related CN203396615U (en) | 2013-08-29 | 2013-08-29 | Intermediate sampling device by continuous operation of reduced pressure distillation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411796A (en) * | 2013-08-29 | 2013-11-27 | 榆林学院 | Continuous operation and intermittent sampling device for reduced pressure distillation |
-
2013
- 2013-08-29 CN CN201320533978.5U patent/CN203396615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411796A (en) * | 2013-08-29 | 2013-11-27 | 榆林学院 | Continuous operation and intermittent sampling device for reduced pressure distillation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210829 |